The 18-year-old attacker, armed with a shotgun, fired randomly at a vocational high school in Siverek, Sanliurfa province, before hiding inside the building.
Tensions between Turkey and Israel have steadily escalated since the Gaza war erupted following Hamas's October 7, 2023, cross‑border attack in Israel.
Turkey's transport minister did not specify if the attack on the tanker happened in Turkish waters but local media reported that it took place less than 30 kilometres from the Bosphorus strait.
Imamoglu said support for the opposition had been growing in a sign of public demand for change and growing fatigue with Erdogan's rule -- a sentiment which the government will struggle to contain.